Rock Mills, AL Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Rock Mills's primary NOAA station, ROCK MILLS.
The climate verdict for Rock Mills
Water is the standout signal in Rock Mills, Alabama: 53.0 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 62°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 62°F
- average temperature, NOAA 1991-2020 normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 53.0"
- yearly precipitation total
- 215 days
- frost-free days per growing season
Rock Mills: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00017025 · Rock Mills, AL 62°F mean · 53.0" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 62°F
- RANK-UPPER #5,489
- PHOTO-FINISH ≈ Altus Irig Rsch
- PRCP-WET 53.0"
- SWING-MID 35°F
- COMF-TOP 80/100
- LOAD-MIX H/C balanced
- STN-1 USC00017025
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Altus Irig Rsch Stn, OK (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every AL station list.
- Rock Mills (this station) 62°F
- Hot Centreville, AL 62°F
- Near Altus Irig Rsch, OK 62°F
- Near Anderson County, SC 62°F
- Near Balch Pwr House, CA 62°F
Climate Living Index · Rock Mills
Rock Mills: 78/100 · grade B
Rock Mills publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Rock Mills, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 13 calendar days | 99/100 · A |
| Annual temperature balance | 61.9°F · 5.6° from 67.5°F | 83/100 · B |
| Frost-free season | 215 days/year | 75/100 · B |
| Precipitation balance | 53.0 in · 18.0 from 35 in | 36/100 · F |
Rock Mills · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Rock Mills is a temperate Köppen climate: Cfa
Coldest-month mean 43.2°F and warmest-month mean 78.1°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 78.1°F
- Coldest month
- 43.2°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · balanced station
Where Rock Mills sits across the climate record
Three NOAA fields for Rock Mills's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 20% warmest
- Among 6,861 stations, Rock Mills sits in the warmer third of annual means.
- Annual precipitation
- Top 14% wettest
- Rock Mills's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 83%
- Warmest-to-coldest month gap for Rock Mills is compact versus 6,861 complete station-years.
How Rock Mills compares across U.S. station-mapped locations
Rock Mills's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Rock Mills's measured station temperature trend
MethodologyAcross 30 complete annual observations from 1949 to 2025, ROCK MILLS warmed at a fitted rate of 0.06°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Rock Mills primary station fitted change +0.06 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 54°F (12°C) | 32°F (0°C) | 43°F (6°C) | 5.3" | 19.0 | 0.0 |
| February | 60°F (16°C) | 36°F (2°C) | 48°F (9°C) | 5.3" | 14.6 | 0.0 |
| March | 68°F (20°C) | 42°F (5°C) | 55°F (13°C) | 5.2" | 7.5 | 0.0 |
| April | 75°F (24°C) | 48°F (9°C) | 62°F (16°C) | 4.4" | 1.8 | 0.2 |
| May | 82°F (28°C) | 57°F (14°C) | 70°F (21°C) | 4.1" | 0.0 | 4.0 |
| June | 87°F (31°C) | 65°F (18°C) | 76°F (24°C) | 4.8" | 0.0 | 13.8 |
| July | 89°F (32°C) | 68°F (20°C) | 78°F (26°C) | 4.5" | 0.0 | 20.5 |
| August | 89°F (32°C) | 68°F (20°C) | 78°F (26°C) | 4.0" | 0.0 | 17.1 |
| September | 85°F (29°C) | 61°F (16°C) | 73°F (23°C) | 3.4" | 0.0 | 7.7 |
| October | 75°F (24°C) | 49°F (10°C) | 62°F (17°C) | 2.8" | 2.3 | 0.2 |
| November | 65°F (18°C) | 40°F (4°C) | 52°F (11°C) | 4.1" | 10.7 | 0.0 |
| December | 57°F (14°C) | 35°F (1°C) | 46°F (8°C) | 5.1" | 17.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around August 6, short of 90°F on every date, while 13 dates carry a normal low at or below freezing, the coldest 32°F near January 12.
The freezing stretch
Freezing normal lows persist into January 22, covering 13 dates.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is July 6, when 36% of years recorded at least a hundredth of an inch. The driest is October 22 at 19%. Summed across the calendar, that is about 101 wet dates a year.
The widest day
April 18 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Rock Mills.
Where Rock Mills Stands Nationally
The normal water year runs well above the national norm at roughly 53 inches.
Rock Mills earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
9.6 days with precipitation
9.3 days with precipitation
8.7 days with precipitation
8.0 days with precipitation
7.5 days with precipitation
9.8 days with precipitation
11.0 days with precipitation
9.2 days with precipitation
6.3 days with precipitation
5.9 days with precipitation
5.9 days with precipitation
9.2 days with precipitation
Rock Mills spreads its precipitation across the year
Neither half of the year dominates here: June through August take 25% of the annual total and December through February 30%, with neither reaching the 35% that would mark a distinct wet season. Rock Mills has no dry season to plan around, though it does carry a 34.9°F seasonal spread.
The gap between the wettest and driest month still matters: February averages 5.3" and October 2.8". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Rock Mills, it arrives in quantity
53.0" of precipitation falls across only about 100 wet days here, averaging 0.53 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 100 a year, 28% of all days
- Average depth per wet day
- 0.53 inches
- Most wet days
- July, about 11
- Fewest wet days
- October, about 6
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
November 3
50% probability date
Last Spring Freeze
April 2
50% probability date
Growing Season
215 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,790
Higher = more heating needed
Cooling Degree Days
1,670
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside AL closest to Rock Mills on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (62°F here).
- Cheraw, SC 62°F · 0.0°F off
- Childress, TX 62°F · 0.0°F off
- Deming, NM 62°F · 0.0°F off
- Duncan, OK 62°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (53.0" here), excluding temperature-peer places.
- Bowling Green, KY 53.0" · 0.0" off
- Kinston, NC 53.0" · 0.0" off
- Monticello, AR 53.0" · 0.0" off
- Danbury, CT 53.0" · 0.0" off
Data-derived climate profile
How Rock Mills's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Rock Mills averages 53.0 inches of precipitation a year. Snowfall is not added to the interpretation because its annual value is missing. The monthly table supplies the seasonal distribution hidden by that annual total.
July and January mark the typical warm and cold ends of the calendar in Rock Mills's middle-range seasonal profile. The measured spread is 34.9°F. The annual average is 62°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Rock Mills's normal, at 2,790 and 1,670 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
A roughly 215-day frost-free season sits inside this mixed heating-and-cooling profile. Start and end dates matter because both sides of the thermostat register during a normal year.
These labels group NOAA 1991-2020 normals from Rock Mills's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Rock Mills, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Rock Mills's climate
How much rain does Rock Mills get? ▼
How many days above 90°F does Rock Mills get? ▼
How much energy does heating and cooling require in Rock Mills? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Rock Mills's primary station: ROCK MILLS (USC00017025). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 0165592), not an incorporated municipality. Match rule for Rock Mills: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Rock Mills comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.